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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solnechno-Zemnaya Fizika</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solnechno-Zemnaya Fizika</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Солнечно-земная физика</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2712-9640</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">81084</article-id>
   <article-id pub-id-type="doi">10.12737/szf-103202412</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ДЕВЯТНАДЦАТАЯ ЕЖЕГОДНАЯ КОНФЕРЕНЦИЯ «ФИЗИКА ПЛАЗМЫ В СОЛНЕЧНОЙ СИСТЕМЕ», 5–9 ФЕВРАЛЯ 2024 Г., ИНСТИТУТ КОСМИЧЕСКИХ ИССЛЕДОВАНИЙ РАН, МОСКВА, РОССИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>19TH ANNUAL CONFERENCE “PLASMA PHYSICS IN THE SOLAR SYSTEM”. FEBRUARY 5–9, 2024, SPACE RESEARCH INSTITUTE RAS, MOSCOW, RUSSIA</subject>
    </subj-group>
    <subj-group>
     <subject>ДЕВЯТНАДЦАТАЯ ЕЖЕГОДНАЯ КОНФЕРЕНЦИЯ «ФИЗИКА ПЛАЗМЫ В СОЛНЕЧНОЙ СИСТЕМЕ», 5–9 ФЕВРАЛЯ 2024 Г., ИНСТИТУТ КОСМИЧЕСКИХ ИССЛЕДОВАНИЙ РАН, МОСКВА, РОССИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Investigating azimuthal propagation of Pc5 geomagnetic pulsations and their equivalent current vortices from ground-based and satellite data</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Исследование особенностей азимутального распространения геомагнитных Pс5-пульсаций и их эквивалентных токовых вихрей по данным наземных и спутниковых наблюдений</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1206-8099</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Моисеев</surname>
       <given-names>Алексей Владимирович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Moiseev</surname>
       <given-names>Aleksey Vladimirovich</given-names>
      </name>
     </name-alternatives>
     <email>moiseev@ikfia.ysn.ru</email>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Попов</surname>
       <given-names>Василий Иванович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Popov</surname>
       <given-names>Vasiliy Ivanovich</given-names>
      </name>
     </name-alternatives>
     <email>volts@mail.ru</email>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2343-1618</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Стародубцев</surname>
       <given-names>Сергей Анатольевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Starodubtsev</surname>
       <given-names>Sergei Anatolyevich</given-names>
      </name>
     </name-alternatives>
     <email>starodub@ikfia.ysn.ru</email>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН – обособленное подразделение Федерального исследовательского центра «Якутский научный центр СО РАН».</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН – обособленное подразделение Федерального исследовательского центра «Якутский научный центр СО РАН».</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН</institution>
     <city>Якутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS</institution>
     <city>Yakutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН</institution>
     <city>Якутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS</institution>
     <city>Yakutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2024-09-29T09:14:37+03:00">
    <day>29</day>
    <month>09</month>
    <year>2024</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2024-09-29T09:14:37+03:00">
    <day>29</day>
    <month>09</month>
    <year>2024</year>
   </pub-date>
   <volume>10</volume>
   <issue>3</issue>
   <fpage>104</fpage>
   <lpage>115</lpage>
   <history>
    <date date-type="received" iso-8601-date="2024-03-30T00:00:00+03:00">
     <day>30</day>
     <month>03</month>
     <year>2024</year>
    </date>
    <date date-type="accepted" iso-8601-date="2024-05-13T00:00:00+03:00">
     <day>13</day>
     <month>05</month>
     <year>2024</year>
    </date>
   </history>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/81084/view">https://naukaru.ru/en/nauka/article/81084/view</self-uri>
   <abstract xml:lang="ru">
    <p>По фазовым задержкам на пространственно-разнесенных станциях, а также по данным спутниковых наблюдений в магнитосфере в двух событиях исследовалось азимутальное распространение резонансных всплесков геомагнитных пульсаций в диапазоне Pc5. Во время этих событий рассматривается также распространение эквивалентных токовых вихрей. Обнаружено, что пульсации по наблюдениям в магнитосфере и ионосфере, и эквивалентные токовые вихри в ионосфере распространяются в азимутальном направлении с дневной стороны на ночную. Скорости распространения по наземным наблюдениям составляют 5–25 км/с, по спутниковым — 114–236 км/с. Последние не превышают альфвеновскую скорость  620–1006 км/с в магнитосфере. По данным разных приборов на спутнике в одном из событий одновременно присутствуют сигнатуры быстрой магнитозвуковой и альфвеновской волн, что наглядно отображает процесс трансформации этих волн. Геомагнитная широта регистрации центров вихрей совпадает с широтой максимальной амплитуды геомагнитных пульсаций (резонансов силовых линий) и уменьшается на величину ~15° по направлению к ранним часам MLT. Предполагается, что наблюдаемая динамика Pc5- пульсаций и вихрей отражает распространение МГД-волны в магнитосфере.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Using phase delays at spaced stations and satellite observations in the magnetosphere during two events, we have studied azimuthal propagation of resonant bursts of geomagnetic pulsations in the Pc5 range. We have also examined propagation of equivalent current vortices during these events. It has been found that the pulsations, observed in the magnetosphere and ionosphere, and the equivalent current vortices in the ionosphere propagate in the azimuthal direction from the dayside to the nightside. Propagation velocities according to ground-based observations are 5–25 km/s; according to satellite observations, 114–236 km/s. Propagation velocities according to satellite observations do not exceed the Alfvén velocity in the magnetosphere, which is 620–1006 km/s. According to data from various instruments, there are signatures of fast magnetosonic and Alfvén waves at a time in one of the events on the satellite. This clearly reflects the transformation of these waves. The geomagnetic latitude of registration of vortex centers coincides with the latitude of the maximum amplitude of geomagnetic pulsations (field line resonances) and decreases by ~15° toward the early hours of MLT. The observed dynamics of Pc5 pulsations and vortices is assumed to reflect MHD wave propagation in the magnetosphere.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>геомагнитные Pc5-пульсации</kwd>
    <kwd>эквивалентные токовые вихри</kwd>
    <kwd>азимутальное распространение</kwd>
    <kwd>волновые возмущения в параметрах плазмы и геомагнитном поле в диапазоне Pc5 в магнитосфере</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>geomagnetic Pc5 pulsations</kwd>
    <kwd>equivalent current vortices</kwd>
    <kwd>azimuthal propagation</kwd>
    <kwd>wave disturbances in plasma parameters and geomagnetic field in Pc5 pulsations in the magnetosphere</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена при поддержке Министерства науки и высшего образования Российской Федерации</funding-statement>
    <funding-statement xml:lang="en">The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation</funding-statement>
   </funding-group>
  </article-meta>
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